Had similar on my sidecar cb500/4 combo back in may 05, was shunted into the arse end of an 05 plate jag, as with you, it took a few seconds to register what had happened. About 5 cars went past us and the jag driver was perhaps understandably livid. Insurance dealt with it with issues - a good bit of service from Carol nash on that occasion, the bill was about £100 for a touch up on the jag, the sidecar still has craked paint front and rear, wasn't pristine before. Bike, unscathed. My ntv got reversed into afew years ago by a Volvo who reversed to chat to a friend off for a jog on entry road. Impressively the only dammage to the bike was a foot peg snapped, the car came off worse, cracked bumper, smashed twilight. I didn't bother claiming. Felt marginally stiff a few days later. Figured the Volvo driver ( who was suitably mortified) had suffered enough dammage.